120 entries under foolish topic. ×

5
doltish(adjective, dull, weak, simple, slow)
5
harebrained(adjective, weak, simple, silly)
5
scatterbrained(adjective, simple, slow, stupid)
5
unaware(adjective, silly, innocent, senseless)
4
birdbrained(adjective, silly, innocent, vague)
4
dense(adjective, dull, simple, slow, silly)
4
dim-witted(adjective, simple, slow, stupid)
4
dotty(adjective, weak, simple, silly)
4
ill-considered(adjective, weak, simple, careless, silly)
4
jerky(adjective, weak, simple, silly)
4
kooky(adjective, weak, simple, silly)
4
ludicrous(adjective, dull, weak, simple, silly)
4
rash(adjective, dull, careless, silly)
4
ridiculous(adjective, weak, simple, silly)
4
unreasonable(adjective, weak, simple, careless, silly)
4
zany(adjective, weak, simple, informal, silly)
3
dopey(adjective, dull, simple, silly)
3
ill-advised(adjective, dull, weak, simple, careless)
3
loopy(adjective, crazy, mad, odd)
3
pointless(adjective, dull, silly, stupid)
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APASmart Define. (2015). witless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/witless/thesaurus/synonyms
ChicagoSmart Define. 2015. "witless thesaurus" https://smartdefine.org/witless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, witless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/witless/thesaurus/synonyms>.
MLASmart Define. "witless thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/witless/thesaurus/synonyms>